U3133 Diagnostic Trouble Code

U3133 is a kind of OBD-II Diagnostic U-Network Diagnostic Trouble Code.

It is considered generic because it applies to all makes and models of vehicles, although specific repair steps may be different depending on your car model.

Symptoms

Symptoms of a U3133 diagnostic trouble code may include:

Poor acceleration
Cherry red hot catalytic converter
Possible spark knock (detonation / pre-ignition)
Rich or lean exhaust

Possible Causes :

Faulty IMRC actuator relay (if equipped)
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
A plugged converter will cause of host of driveability problems as well as set this code. A severely plugged converter will result in the inability to increase rpm when under load. Look for a code such as P0421 -- catalytic converter efficiency below threshold if the converter indicating a faulty converter.

Repair Processes :

Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors. Pull the connectors apart and carefully look at the terminals (the metal parts) inside the connectors. Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector. If the engine displays a miss and there wasn't a code, determine which cylinder is misfiring. If the exhaust manifold is visible, spay or pour a small amount of water on each cylinder exhaust port. Water will evaporate immediately on good cylinders and slowly on the missing cylinder. If this can't be accomplished pull the plugs and check the condition.

Process Tips

Diagnostic trouble code U3133 is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.

Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before U3133.

Fortunately, U3133 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

U3133 Trouble Code For Specific Cars

U3133 Ford F150 Memory Set Switch Circuit Short To Battery
U3133 Volkswagen Pickup Right Tail Lamp Circuit Short to Ground
U3133 Lamborghini Reventon SPCUT Solenoid Circuit Malfunction
U3133 Gmc Canyon Park Brake Actuator Assembly Switch Applied Circuit Short to Gnd
U3133 Ford Explorer Memory 2 Switch Circuit Failure
U3133 Maserati Quatroporte Transmission Fluid Temperature Sensor Circuit High Input
U3133 Proton Savvy Fuel Tank Pressure Sensor Circuit Open